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Shareholders' Equity (Tables)

12 Months Ended

Dec. 31, 2012

Shareholders' Equity [Abstract]

Fair Value Assumptions

Average Risk-free interest rate (a)	3.73	%
Expected dividend yield	0.0	%
Average expected volatility (b)	112.42	%
Termination rate	11	%
Suboptimal rate (c)	3.45

(a) Risk-free interest rate represents risk free US$ zero-coupon US Government Bonds at time of grant.

(b) Expected average volatility represents a weighted average standard deviation rate for the price of the Company's ordinary shares on the NASDAQ National Market.

(c) Suboptimal rate represents the multiple of the increase in the market share price on the day of grant of the option which, should it come to pass, will lead to exercise of the option by the employee. It is the average suboptimal rate of the Company and similar companies.

Average Risk-free interest rate (a)	3.00	%
Expected dividend yield	0.0	%
Average expected volatility (b)	82.64	%
Termination rate	9	%
Suboptimal rate (c)	3.45

(a) Risk-free interest rate represents risk free US$ zero-coupon US Government Bonds at time of grant.

(b) Expected average volatility represents a weighted average standard deviation rate for the price of the Company's ordinary shares on the NASDAQ National Market.

(c) Suboptimal rate represents the multiple of the increase in the market share price on the day of grant of the option which, should it come to pass, will lead to exercise of the option by the employee. It is the average suboptimal rate of the Company and similar companies.

Average Risk-free interest rate (a)	1.33	%
Expected dividend yield	0.0	%
Average expected volatility (b)	64.71	%
Termination rate	9	%
Suboptimal rate (c)	3.2

(a) Risk-free interest rate represents risk free US$ zero-coupon US Government Bonds at time of grant.

(b) Expected average volatility represents a weighted average standard deviation rate for the price of the Company's ordinary shares on the NASDAQ National Market.

(c) Suboptimal rate represents the multiple of the increase in the market share price on the day of grant of the option which, should it come to pass, will lead to exercise of the option by the employee. It is the average suboptimal rate of the Company and similar companies.

Stock Option Summary

			Options outstanding								Options exercisable
							Weighted								Weighted
							average remaining								average remaining
Exercise price			Number				contractual life				Number				contractual life
US$			of options				(in years)				of options				(in years)
3.82				40,087				3.79				40,087				3.79
18.82				135,000				5.97				67,500				5.97
15.28				238,000				7.70				-				-
				413,087								107,587

Stock Option Activity

										Weighted
						Weighted				average
		Number				average				grant date
		of options				exercise price				fair value
						US$				US$
Balance at January 1, 2010			240,700
Granted			137,500				18.82				8.69
Exercised			(70,375	)			3.68				1.81
Forfeited			(2,000	)			3.82				1.81
Balance at December 31, 2010			305,825
Exercised			(45,400	)			3.62				1.75
Forfeited			(3,000	)			16.32				7.54
Balance at December 31, 2011			257,425
Granted			240,000				15.28				6.54
Exercised			(82,338	)			3.35				1.81
Forfeited			(2,000	)			15.28				6.54
Balance at December 31, 2012			413,087
Exercisable at December 31, 2012			107,587

Summary Of Allocation Of The Stock-Based Compensation Expenses

		Year ended December 31
		2010				2011				2012
		US$ thousands				US$ thousands				US$ thousands
Cost of sales			33				24				46
Research and development costs			71				96				130
Selling and marketing expenses			65				134				159
General and administrative expenses			62				183				209
			231				437				544

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